There is a Chinese idiom that says: 'Every occupation produces professionals'. Let's take David Beckham as an example. He loves football, which is his interest, and he has turned his interest into a profession.

What's more, talent shows exist so teens can show off their singing and dancing skills.

One thing we should bear in mind is not all teens are gifted in studying. Those who are not interested in studying need these kinds of talent shows to boost their confidence and display their skills and creativity.

Chloe Wong, Carmel Secondary School

High cost for air-conditioning

Air-conditioners are great. We use them as to keep us cool from Hong Kong's summer heat, and to ventilate our rooms when it's really polluted outside. But, these luxuries come at a cost.

Are you aware of the impact air-conditioners have on our environment?

Not only do they use a lot of electricity, they contribute to dirty air and global warming.

The Hong Kong Electric Company, whose sole power generating facility is on Lamma Island, generates all of Hong Kong Island's electricity. It also supplies electricity to Lamma.

We cannot just blame the factories in Shenzhen for making us breathe in these hazardous pollutants. We have contributed to this problem through our excessive use of air-conditioning.

Unfortunately, an air-conditioner's trail of destruction doesn't just end there. In fact, it is more detrimental towards the environment after it is thrown away. Old air-conditioners are piling up in our landfills.

I'm 14 now, and in a few years, it's going to be my generation running the world. So I ask, on behalf of all the children on earth and those of generations to come, don't spoil our beautiful world. It's the only home we've got.

You may not be around to see the consequences of your actions, but we will, and we're the ones who are going to have to fix this mess.

By flipping a switch, you could help save the environment, save money, and, in the long run, save the lives.

Evelyn Liu, Hong Kong International School

The city of Perth a great destination

I recently joined a three week study tour to Perth, Western Australia. Perth is such a great city. The air is fresh, the streets are peaceful and Australians are friendly. There are no tall buildings and the sky is blue in the day and full of stars in the night.

Not only is Perth a peaceful city, it is also a very polite city. People say 'thank you' and 'goodbye'. I visited many tourist sites, such as Fremantle and Rottnest Island.

I had English lessons every day with other students. I learned English not only in the lessons, but also while socialising.

The trip was a great experience for me, I have learned to be independent as I lived with the host family and I got to see the amazing city of Perth.

Mandy Lam Yuen-man, CUHK FAA Thomas Cheung Secondary School

Need to cool down property prices

Because of the increasing prices in the property market, many Hong Kong people feel the government should intervene and help lower prices. Some fear that the market will collapse again like it did in 1998.

In my opinion, a heavy-handed intervention like the one in 1998 is not the answer. Although Hong Kong has a free market, the government really should take some action to cool down the overheated market.

The 'bubble' is going to burst at some stage. I think the government should introduce tougher laws on people buying too many flats and provide more homes to meet market demand.

Bobo Li Po-yi, Tsuen Wan Public Ho Chuen Yiu Memorial College